2013
DOI: 10.1111/1365-2656.12016
|View full text |Cite
|
Sign up to set email alerts
|

Risk‐sensitive allocation in seasonal dynamics of fat and protein reserves in a long‐lived mammal

Abstract: Summary1. Body reserves of numerous taxa follow seasonal rhythms that are a function of temporal patterns in food availability and life-history events; however, tests of the theory underlying the allocation of somatic reserves for long-lived organisms are rare, especially for free-ranging mammals. We evaluated the hypothesis that allocation of somatic reserves to survival (i.e., metabolic processes) and reproduction should be sensitive to current nutritional state relative to seasonal thresholds in those reser… Show more

Help me understand this report

Search citation statements

Order By: Relevance

Paper Sections

Select...
3

Citation Types

11
235
0

Year Published

2014
2014
2022
2022

Publication Types

Select...
9

Relationship

4
5

Authors

Journals

citations
Cited by 149 publications
(246 citation statements)
references
References 63 publications
11
235
0
Order By: Relevance
“…Summer nutrition first affects adult female body condition [54], which predicts pregnancy rates [53–55], overwinter adult survival rates [54,56], litter size [57] as well as birth mass and early juvenile survival [5759]. The addition of lactation during summer increases nutritional demand and thus is an important component of the annual nutritional cycle [47,60].…”
Section: Introductionmentioning
confidence: 99%
See 1 more Smart Citation
“…Summer nutrition first affects adult female body condition [54], which predicts pregnancy rates [53–55], overwinter adult survival rates [54,56], litter size [57] as well as birth mass and early juvenile survival [5759]. The addition of lactation during summer increases nutritional demand and thus is an important component of the annual nutritional cycle [47,60].…”
Section: Introductionmentioning
confidence: 99%
“…Nutrition during winter (energy) minimizes body fat loss [58], but rarely changes the importance of late summer and autumn nutrition for survival of both juveniles and adults [53]. Winter severity then interacts with body condition to shape winter survival of ungulates [54,61] and can, in severe winters, overwhelm the effect of summer/autumn nutrition through increased energy expenditure, driving overwinter survival of juveniles.…”
Section: Introductionmentioning
confidence: 99%
“…Monteith et al, 2013). Thus, the body condition of adult females that recruit young vs. those that do not may vary considerably andpotentially influence migratory behaviour (DeMars, Auger-Méthé, Schlägel, & Boutin, 2013; Monteith et al, 2011; Singh & Ericsson, 2014).…”
mentioning
confidence: 99%
“…This pattern is not consistent with a "dietary restriction" or "terminal investment" effect, but neither with a model in which survival and reproduction are equally dependent on food availability. On the other hand, a reduction in the rate of reproduction and maintenance of somatic functions in the face of challenging conditions has been observed, e.g., in reef corals (Leuzinger et al, 2011), and is generally predicted to occur in long-lived, iteroparous animals that are expected to favor survival over current reproduction (e.g., Gaillard et al, 2000;Therrien et al, 2008;Kitaysky et al, 2010;Monteith et al, 2013). This is somewhat surprising since H. oligactis is a species with a relatively fast life history (it is characterized by a high rate of asexual reproduction and low tolerance against oxidative stress; Tökölyi et al, 2016).…”
mentioning
confidence: 99%